ADI AR-446 - Reception

5-1-3 Rear Panel
@ANTENNA connector
Attach an antenna with a low SWR and an impedance of 50 ahms.
@13.8 VDC power input connector
Connect the supplied DC power cable to this connector.
Pay close attentian to the polarity. Red is positive and black is
negative.
@Fuse holder
Contains a requaired fuse.
“AR-146:154, AR-446:10A
Do not use a larger fuse as damage might result to the transceiver.
®€xternal speaker jack
This jack is used to connect an external speaker. The speaker
should have an impedance of 8 ohms.
5-1-4 Microphone
OOUp/DOWN switches
These switches can be used to increase or decrease the VFO
frequency, the Memory channel number, and the Tone frequency,
etc..
@PTT(push to Talk) switch
The transceiver will transmit whenever this switch is depressed.
Scan operations may be canceled by pressing this switch.
@CALL key
This key functions just like the CALL key on the front of the radio.
1750 key
The transceiver will transmit with 1750 Hz repeater access tone
whenever this switch is depressed in Tx mode.
@)VFO key
This key f
@MRA key
This key f
@MHz key
This key i:
or decreas
@®16-Tone
These but
@LOCK ke
This key '
PTT funct